LMZ14201_17 Datasheet, PDF (3/29 Pages) Texas Instruments – SIMPLE SWITCHER 6V to 42V, 1A Power Module in Leaded SMT-TO Package

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5 Pin Configuration and Functions
LMZ14201
SNVS649I – JANUARY 2010 – REVISED OCTOBER 2015
NDW Package
7-Pin TO-PMOD
Top View
7
6
Exposed Pad
5
4
Connect to GND
3
2
1
VOUT
FB
SS
GND
EN
RON
VIN
PIN
NO.
NAME
1
VIN
2
RON
3
EN
4
GND
5
SS
6
FB
7
VOUT
—
EP
TYPE
Power
Analog
Analog
Ground
Analog
Analog
Power
Ground
Pin Functions
DESCRIPTION
Supply input — Nominal operating range is 6 V to 42 V . A small amount of internal
capacitance is contained within the package assembly. Additional external input
capacitance is required between this pin and exposed pad.
On Time Resistor — An external resistor from V_IN to this pin sets the ON-time of the
application. Typical values range from 25 kΩ to 124 kΩ.
Enable — Input to the precision enable comparator. Rising threshold is 1.18 V nominal;
90 mV hysteresis nominal. Maximum recommended input level is 6.5 V.
Ground — Reference point for all stated voltages. Must be externally connected to EP.
Soft-Start — An internal 8-µA current source charges an external capacitor to produce
the soft-start function. This node is discharged at 200 µA during disable, overcurrent,
thermal shutdown and internal UVLO conditions.
Feedback — Internally connected to the regulation, overvoltage, and short-circuit
comparators. The regulation reference point is 0.8 V at this input pin. Connected the
feedback resistor divider between the output and ground to set the output voltage.
Output Voltage — Output from the internal inductor. Connect the output capacitor
between this pin and exposed pad.
Exposed Pad — Internally connected to pin 4. Used to dissipate heat from the package
during operation. Must be electrically connected to pin 4 external to the package.
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)^(1)(2)(3)
VIN, RON to GND
EN, FB, SS to GND
Junction Temperature
Storage Temperature
MIN
MAX
UNIT
–0.3
43.5
V
–0.3
7
V
150
°C
–65
150
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) For soldering specifications, see product folder at www.ti.com and SNOA549.
6.2 ESD Ratings
V_(ESD) Electrostatic discharge
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001⁽¹⁾
VALUE
±2000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
UNIT
V
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